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Life & fun · July 23, 2026

Write, simulate and synthesize VHDL/Verilog in the browser

Learn digital hardware design in the browser: write VHDL and SystemVerilog, simulate, read waveforms, and synthesize to a netlist. No installation required.

Write, simulate and synthesize VHDL/Verilog in the browser launched on July 23, 2026 with 19 votes, #902 of 24,623 launches that month and more than 90% of that year's launches.

Visit risingedge.pro ↗Alternativestop 4% of July 2026

In plain words

This is a browser-based tool for writing, simulating, and synthesizing VHDL and Verilog code. It allows hardware engineers and students to develop digital designs directly in a web interface without installing software. The tool combines code editing, circuit simulation, and synthesis capabilities in one platform, making it useful for learning hardware description languages and prototyping hardware designs online.

written from the facts on this page · September 2026

From the sources

-- A 4-bit counter: counts up while en_i is high library ieee; use ieee.std_logic_1164. all ; use ieee.numeric_std. all ; entity pulse_counter is port ( clk_i : in std_logic ; rst_i : in std_logic ; en_i : in std_logic ; count_o : out std_logic_vector (3 downto 0) ); end entity pulse_counter; architecture rtl of pulse_counter is signal count_r : unsigned(3 downto 0); begin -- One register and one adder: that's the -- whole design once it reaches silicon process (clk_i) is begin if rising_edge(clk_i) then if rst_i = '1' then count_r <= ( others => '0'); elsif en_i = '1' then count_r <= count_r + 1; end if ; end if ; end process ; count_o <= std_logic_vector (count_r); end architecture rtl;…from risingedge.pro

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